Loudspeaker



FIG. 1 is a front perspective view of a loudspeaker showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an opposite side elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are included for the purpose of illustrating portions of the loudspeaker; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a loudspeaker, as shown and described. 